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52ce0c101e
This compiles with no changes to clang/lld/lldb with MSVC and includes overloads to various functions which are used by those projects and llvm which have OwningPtr's as parameters. This should allow out of tree projects some time to move. There are also no changes to libs/Target, which should help out of tree targets have time to move, if necessary. llvm-svn: 203083
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
//===-- llvm/Support/Compression.h ---Compression----------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains basic functions for compression/uncompression.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_COMPRESSION_H
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#define LLVM_SUPPORT_COMPRESSION_H
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#include "llvm/Support/DataTypes.h"
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#include <memory>
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namespace llvm {
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class MemoryBuffer;
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class StringRef;
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namespace zlib {
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enum CompressionLevel {
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NoCompression,
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DefaultCompression,
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BestSpeedCompression,
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BestSizeCompression
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};
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enum Status {
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StatusOK,
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StatusUnsupported, // zlib is unavailable
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StatusOutOfMemory, // there was not enough memory
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StatusBufferTooShort, // there was not enough room in the output buffer
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StatusInvalidArg, // invalid input parameter
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StatusInvalidData // data was corrupted or incomplete
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};
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bool isAvailable();
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Status compress(StringRef InputBuffer,
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std::unique_ptr<MemoryBuffer> &CompressedBuffer,
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CompressionLevel Level = DefaultCompression);
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Status uncompress(StringRef InputBuffer,
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std::unique_ptr<MemoryBuffer> &UncompressedBuffer,
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size_t UncompressedSize);
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uint32_t crc32(StringRef Buffer);
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} // End of namespace zlib
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} // End of namespace llvm
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#endif
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